ISSUE-70: UNICODE-RANGE definitions

UNICODE-RANGE definitions

There are several varieties of "semantically dubious" UNICODE-RANGE
tokens: while conforming to one of the three basic forms, their effect
is not fully specified. These are issues only for css3-fonts, which
should specify the effect of all possible range tokens.

Related notes:

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Changelog:

Created issue 'UNICODE-RANGE definitions' nickname owned by Elika Etemad on product CSS3 Fonts, description 'There are several varieties of "semantically dubious" UNICODE-RANGE
tokens: while conforming to one of the three basic forms, their effect
is not fully specified. These are issues only for css3-fonts, which
should specify the effect of all possible range tokens.